Creosoted charcoal point.



.ATENT ERNEST ROBERT TAIT, OF OAKLAND, CALIFORNIA.

CREOSOTED CHARCOAL POINT.

SPECIFICATION forming part of Letters Patent N 0. 637,303, datedNovember 21, 1899.

Application filed March 21, 1899. Serial No. 709,883. (No specimens.)

To all whom it may concern.-

Be it known that I, ERNEST ROBERT TAIT, a subject of Queen Victoria,(but having declared my intention of becoming a citizen of the UnitedStates,) residing at Oakland, in the county of Alameda, State ofCalifornia, have invented a new Creosoted Point for Treatment ofAbscesses, especially abscesses situated in the alveolar process of thesuperior or inferior maxillary bones, which creosoted charcoal pointsare prepared in the following manner.

I take the best porous charcoal, preferably that of the willow, andreduce it to tapering rods or points of a diameter ofabout onethirtiethof an inch at the thickest part and of a length varying from half to oneinch, more or less. These points are prepared by rolling betweensandpaper or other means to obtain the requisite shape and size, so thatthey may be inserted in the root-canal of a tooth. After being so formedthese points are medicated by being saturated with a mixture ofparaform, one; alkanet, three; beechwood creosote, one hundred; or otherantiseptic, and are supplied for use in a glass tube containing thepoints and an excess of the medicament, and the tube is stopped with astopper.

The points so prepared are to be used in the following manner: Thepresence of pus or pericementitis may be altogether neglected in usingthese points according to these directions. Having first removed alldebris from the cavity and canal, clear and straighten the root-canalwith a Gates-Glidden or other rootdrill, pass a nerve-broach through theapical foramen to insure contact of the infected mat ter with thecharcoal point, wipe out the rootcanal with a shred of cotton, andinsert one of the points. Tamp the point down well, so as to break it upand fill the canal with the charcoal. Seal the canal with a suitablecement and after two or three days rest insert the filling.

Should there be a fistulous opening on the gum or cheek, probe well witha carbolized probe and pack in one of the points ground to powder.Prevent the fistula healing except from the bottom by occasionallycauter izing with carbolic acid and injecting a little peroxide ofhydrogen.

Be careful to avoid overstimulation or excessive irritation of the seatof the injury.

I claim as my invention- The herein-described medicated point fordentists use consisting of a tapering easilyfrangible rod of charcoal ofa size adapted to be inserted in the root-canal of a tooth and saturatedwith paraform, alkanet and creosote as specified.

ERNEST ROBERT TAIT.

Witnesses:

- O. T. JARVIS,

FRIEND E. MOORE.

